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  • Two solid conductors are made up of same material, have same length and same resistance. One of them has a circular cross section of area A1 and the other one has a square cross section

Two solid conductors are made up of same material, have same length and same resistance. One of them has a circular cross section of area A1 and the other one has a square cross section of area A2. The ratio A1/A2 is

 

Option: 1

1


Option: 2

0.8


Option: 3

2


Option: 4

1.5


Answers (1)

best_answer

R_1=R_2

Also 

s_1=s_2 (same material)

l_1=l_2

\frac{s_1l_1}{A_1}=\frac{s_2l_2}{A_2}; \frac{A_1}{A_2}=\frac{1}{2}

Posted by

HARSH KANKARIA

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